I guess the first question would be, can this be obtained at sequence 4 or do I need to go further? I've been trying to find the location of the map that would lead to the plans but google search has brought up nothing sadly. Any help would be appreciated greatly!
PSN - Yanoth - Add me anytime! 3DS FC - 3823-8582-2483 Name: Yanoth
I picked up the treasure map for it in Sequence 3 before starting Memory 5. I don't know if the maps are random or not, but I also found it on the Island I'm supposed to go to for the next storyline mission.
My fate cries out, and makes each petty artery in this body as hardy as the Nemean lion's nerve.